82 citations · 155 across the 4 of their papers we have counts for
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cond-mat.mtrl-sci1997
Assessment of the GW approximation using Hubbard chains
Thomas J. Pollehn, Arno Schindlmayr, R. W. Godby
We investigate the performance of the GW approximation by comparison to exact results for small model systems. The role of the chemical potentials in Dyson's equation as well as th…
cond-mat.mtrl-sci1997
Systematic vertex corrections through iterative solution of Hedin's equations beyond the GW approximation
Arno Schindlmayr, R. W. Godby
We present a general procedure for obtaining progressively more accurate functional expressions for the electron self-energy by iterative solution of Hedin's coupled equations. The…